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Attachment 25: Appendix Line Sharing/SOUTHWESTERN BELL TELEPHONE, L.P.
SBC TEXAS/CLEC JOINT PETITIONERS
PAGE 2 OF 11
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3400 Hertz). DSL technologies which operate at frequencies above 20,000 Hertz generally will not interfere
with voice band transmission. In those instances where SBC TEXAS has deployed Digital Loop Carrier
network architecture, in which the portion of the loop running from the SBC TEXAS central office to a remote
terminal is on fiber facilities and a portion of the loop running from the remote terminal to the customer is on
a copper loop facility, SBC TEXAS will make available access to the HFPL copper subloop pursuant to
Attachment 6 UNE, Attachment 13: Collocation and the terms of this Appendix, as applicable. SBC TEXAS
shall only make the HFPL available to CLEC in those instances where SBC TEXAS also is providing retail
POTS (voice band circuit switched) service on the same local loop facility to the same end user.
2.3 “Loop” or “xDSL Loop” for purposes of this Appendix only shall refer to a 2-wire copper local loop
transmission facility between a distribution frame (or its equivalent) in an SBC TEXAS central office and the
loop demarcation point at an End-User premises, that may be conditioned at CLEC’s request, in order for
CLEC to provide xDSL-based services over the HFPL.
2.4 A “Splitter” is a device that divides the data and voice signals concurrently moving across the loop, directing
the voice traffic through copper tie cables to the switch and the data traffic through another pair of copper tie
cables to multiplexing equipment for delivery to the packet-switched network. The Splitter may be directly
integrated into the Digital Subscriber Line Access Multiplexer (DSLAM) equipment or may be externally
mounted.
2.5 “Digital Subscriber Line Access Multiplexer” (“DSLAM”) is a piece of equipment that links end-user DSL
connections to a single high-speed packet switch, typically ATM or IP.
3.0 AVAILABILITY OF HFPL FOR PURPOSES OF LINE SHARING
3.1 SBC TEXAS shall make available to CLEC (or its successor or assign) the HFPL for purposes of line
sharing in accordance with Sections 3.2-3.4.
#3.2 Grandfathered Line Sharing Arrangements. SBC TEXAS must continue to provide access to the HFPL,
where prior to October 2, 2003, CLEC began providing DSL service to a particular end-user customer and
has not ceased providing DSL service to that customer. Subject to Section 1.2.1 – 1.2.3 above, such
access to the HFPL shall be provided at the same monthly recurring rate that SBC TEXAS charged prior to
October 2, 2003 and shall continue until the earlier of: CLEC’s xDSL-base service to the end-user customer
is disconnected for whatever reason.
3.3 New Line Sharing Arrangements SBC TEXAS shall provide CLEC with access to the HFPL between
October 2, 2003 and October 2, 2006, where CLEC begins/began providing xDSL service to a particular
end-user customer on or after October 2, 2003, and on or before October 2, 2004.
3.3.1 With respect to any end-user customers that CLEC begins to provide xDSL service over the HFPL on or
after October 2, 2003 and on or before October 3, 2004, SBC TEXAS’ monthly recurring rates for the HFPL
shall be as follows
3.3.1.1 For the period from October 2, 2003 through October 2, 2004 - 25% of the state-approved monthly
recurring rate, or 25% of the monthly recurring rate set forth in SBC TEXAS’ and CLEC’s
interconnection agreement, for access to a DSL-capable loop in effect on October 2, 2003;
3.3.1.2 For the period from October 3, 2004 through October 2, 2005 Year – 50% of the state approved
monthly recurring rate, or 50% of the monthly recurring rate set forth in SBC TEXAS’ and CLEC’s
interconnection agreement, for access to a DSL-capable loop in effect on October 2, 2003;